java圖表（open source）

（下列順序是經我個人主觀評比的結果）

[****]Scientific Graphics Toolkit:
http://www.epic.noaa.gov/java/sgt/
*2-D contour, *pixel plots, *vector plots, *professional

[**]Java Chart Construction Kit:
http://jcckit.sourceforge.net/
*small, *dynamic charts and plots, easy to understand

[**]Ptplot:
http://ptolemy.eecs.berkeley.edu/java/ptplot5.1p1/ptolemy/plot/doc/index.htm
*print, easy to use, *Infinite range zooming, Editable plots, code is OK

[**]JOpenChart Library and Toolkit:
http://jopenchart.sourceforge.net/index.shtml
*logical class structures, *math graph

JFreeChart:
http://www.jfree.org/jfreechart/index.html
time series, high/low/open/close charts and candle stick charts;

[X]jCharts:
http://jcharts.sourceforge.net/index.html
*Radar Chart

[X]JRobin:
http://www.jrobin.org/

[X]Chart2D:
http://chart2d.sourceforge.net//